News & Insights
Cowan, Liebowitz & Latman Top Ranked in 2026 Edition of WTR 1000
National Disability Employment Awareness Month
The 2026 Edition is Available of A Trademark is Not a Copyright or a Patent by William M. Borchard with Deborah K. Squiers
Cowan, Liebowitz & Latman Once Again Shortlisted for Multiple Managing IP Awards, Including U.S. National and Regional Honors
Case Studies
We established that cigarette rolling paper size designations are generic.
Federal Circuit upholds successful opposition against application to register LEHMAN BROTHERS for whiskey
Federal Circuit reverses cancellation of U.S. trademark registrations
The Second Circuit affirms summary judgment for our client.
We succesfully represented our client, Major League Baseball Partners, Inc.
What They Say
"Richard S. Mandel is a phenomenal intellectual property litigator, held in high esteem for deft handling of cases at the forefront of the industry, and is lauded by peers and clients as 'a strong thinker'."
2025 Lexology Index"Kieran G. Doyle is a well-known name in the intellectual property market who regularly advises leading brands on the full remit of trademark issues, and draws the praise of peers and clients for his 'high standard of service'."
2025 Lexology Index"Maryann Licciardi is thoroughly recommended for her strong acumen in trademark prosecution, litigation and portfolio management, making her a trusted source of guidance for leading global clients."
2025 Lexology Index"The team at Cowan is wonderful. Extremely efficient, detail-oriented, and careful with deadlines. The other great aspect is that they firmly stand by the adage that no two clients are the same—so their advice is tailored towards meeting the needs and requirements of individual clients."
2025 Legal 500"Highly experienced prosecution team – focused on obtaining rights cautiously while clearly presenting what is obtainable and what is not."
2025 Legal 500
Why Us
Founded in 1957, we maintain long-term relationships by providing sound advice, quality legal work, and highly-responsive, personalized service.
What We Do
We represent clients of all sizes across a broad range of industries. The boutique size of our firm, and the breadth of our practice capabilities, allow us to provide a multidisciplinary approach in a cost-effective manner.
Our Clients
Our experience spans a broad range of industries and is international in scope. We appreciate the opportunity of growing with successful companies and brands, as well as creative individuals and accomplished executives.










